I followed the instructions written previously (downloading QT etc.) and am experiencing the same problems. I use a Intel MacBookPro with the OSX 10.4.8

Then you should have installed the Qt library, didn't you ?

That means unpack the archive ZIP file, to obtain a DMG disk image. Then click on the DMG image and install the Qt library from its package (located in the DMG) with a regular installation process that requires the root password.

If you haven't properly installed Qt, there's no reason that it work, and K3DSurf can't be launched.

If you're familiar with MacOSX, you can even look and see what's written in the OSX console history that is located in the OSX information box, asking for more information about your Mac computer.

I tried many time to have K3DSurf working on 4 different Mac without success, ( I change my Mac often to be able to render 3D files faster). I check the console and it seem to be related to AppleScript and conflicts with some Photoshop libs ??? Not really helpful...

After reading this forum Francois said something about; it could be better to install QtMac335-Mini-Tiger instead of QtMac336-Mini-Intel, even if logically because I run an iMac with a i7 processor and the last version of SnowLeopard, the intel version seem to be a better choice...

Because I want and really need an implicit equation to 3D mesh software, especially if it can save as wavefront file. K3DSurf is the only one I find that is able to do it and using it in a Window emulator on Mac is kind of pain and I encounter some out of memory problem, finally it suck out all the fun of using it...

Today I tried to install the QtMac335-Mini-Tiger but my mac refused to accept because I have a more recent version of QtMac already install &^%$%#$@!

Now what I did to solve this problem and finally be able to use K3DSurf:

The first thing to do is to uninstall QtMac336-Mini-Intel. Not easy because there's no uninstaller... The first thing to do is to know what was install to be able to uninstall it. I download QtMac336-Mini-Intel.zip, unzip and end up with a QtMac336-Mini-Intel.pkg file, to open it and be able to see what this pakage had install, I use a free software call unpkg.app (it's still available at http://www.macupdate.com/app/mac/16357/unpkg) with that I know which files and were they are install. They are in an invisible folder call "usr", now I need to make the invisible folders on my Mac visible. Again there many way to do it, what I used is a freeware call InvisibilityToggler.app ( Still available at; http://download.cnet.com/Invisibility-Toggler/3000-2094_4-144627.html)

With that I was able to removed all the files QtMac336-Mini-Intel had previously install.

Now it's time to install QtMac335-Mini-Tiger, my computer still tell me that I can't install it because I have a more recent version of it, I tried a restart same problem, finally I unpack QtMac335-Mini-Tiger.pkg and manually install the files at the same place they are in the installer.

I tried to run K3DSurf and WOW! it work now... I'm so glad.

I hope this could help some of you to be able to run this great software on your Mac.

Hi Luc,
Welcome to the forum and thank you very much for your advices...it should be very helpful for a lot of Mac users. I (and François ) received a lot of email from Mac users complaining about the same install problem and you seem to have pinpointed the origin of this issue.
Also, I have to say that I'm so glad and proud to have you as a member in this forum: Your work and dedication to the math art field was and still an inspiration to me and for that I can't thank you enough.
Please feel free to share with us some of your work and links in the "New Mathematical Objects" thread, it certainly will be a great value to this forum and it's members _________________Cheers,
Abderrahman